Why is a hypothesis called an educated guess?

Dogs conditioned to salivate to stimulation of the thigh also begin to salivate when stimulated on other body parts. this best illustrates

What statement is true about heterozygous organisms? Heterozygous organisms are more diverse than homozygous organisms. Heterozygous organisms can show either the dominant or the recessive trait.

which set of terms best describes a community of fishers who live on a bayou in southern Louisiana and use specialized and use specialized boating equipment?

Is the dying of a plant cell, when the secondary cell wall is present, a mechanical process?

Which statement correctly describes a feature of carrying capacity? A. can only change if the population experiences migration B. can only be calculated for species with a uniform population distribution C.

Triglycerides belong to which general class of organic molecules?

A rain forest has a high level of biodiversity because it has

Which best explains how the body maintains homeostais? A. All systems work together to match the external environment B. All systems work together to stabilize the body C. Each system works interdependently to stabilize the body D.

It is an effect that drug use can have on society? A. Drug use increases pollution. B. Drug use leads to an increase in criminal activity. C. Drug use increases the spread of disease. D. All of the above

Which of the following affects the speed of light waves in a material? Angle at which the ray strikes the medium Color of the material Density of the material Temperature of the light wave